Why do some fruits taste sweeter after they are kept in the refrigerator? Many of us have this kind of experience that sometimes we taste fruits after keeping them in the freezer for a while and they taste sweeter. Why is that? Then, let the Nongfuguopin do the following explanations for you and hopefully it’ll be helpful to you.
Some fruits kept in cold storage in the freezer would be sweeter because the sugar in them is mainly the fructose, which has cool and sweet features: its sweet degree has much to do with the temperature. When under 40℃, the cooler, the sweeter. The highest can be 1.73 times of that of cane sugar. The reasons why it’s cool and sweet are that the fructose has two molecular structures; α and β. The sweetness of the α-fructose is 3 times of the β-fructose. In low temperature, part of β-fructose turns into α-fructose, this makes it sweeter. Owing to the property of fructose, it is massively used in soft drink and other cold drink and food, such as: carbonated beverage, fruit juice beverage, sports beverage, ice-lolly and ice cream and so on. Thus we would feel extremely sweet when enjoying these cold drinks. This is why fruits will after cold storage in freezer.
However, we should not refrigerate all fruits only because this will make them sweeter, as every type of fruit has its own storage temperature and storage life. The longer they are refrigerated, the worse fruits’ nutrition and tastes become. It will be fine to store fruits such as bananas, pineapples, mangos, papayas, lemons and so on in cool place indoor. It’s advised not to refrigerate these fruits for a long time.
In addition, do not wash the fruits before refrigerating. Otherwise, they will easily be rotten in the refrigerator. After buying the fruit and taking them home, if you don’t eat them for a while or can’t eat them all, reserve them in the freezer. Before putting them into refrigerator, pay attention not to wash them and should try to eat them all within one week. In addition, apples, pears, bananas, papayas, peaches or some other perishable fruits produce ethenes easily, so you’d better not place these fruits together with other fruits.
This is the reason why some fruits are after cold storage in freezer.